1
Q:

The PS command prints the process status for only some of the running processes.

 

A) TRUE B) FALSE

Answer:   B) FALSE

Explanation:

The PS command prints the process status for some or all of the running processes

Subject: Operating Systems
Exam Prep: GATE
Q:

A computer assisted method for the recording and analyzing of existing or hypothetical systems is

A) Data transmission B) Data capture
C) Data flow D) Data processing
 
Answer & Explanation Answer: C) Data flow

Explanation:
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2 20
Q:

What are the various types of CPU registers in a regular operating system design ?

Answer

 Stack Pointer
 Index Registers
 Accumulators
 General Purpose Registers

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2 234
Q:

What is the perfect page size when designing an operating system ?

Answer

The perfect paging size varies from system to system, so there is no single best when it reaches to page size. There are several factors to consider in order to come up with a fitting page size, such as paging time, page table, and its effect on the total performance of the operating system.

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2 325
Q:

When designing the file structure for an operating system, what attributes are considered ?

Answer

Commonly, the different attributes for a file structure are naming,size, identifier, a level of protection, supported file types and location for the files.

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4 213
Q:

Default read write and execute permissions given to a file for owner, group and others are

A) 6-4-4 B) 6-4-2
C) 6-4-6 D) 6-6-6
 
Answer & Explanation Answer: A) 6-4-4

Explanation:

Default permissions given to a file are:

Owner - read write and execute - 6

group - write - 4

others - write - 4

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